Sash-lifter.



N0. 639,32l. Patented Dec. l9, I899. R. WASHBURN.

SASH LIFTER.

[Application filed Aug. 8, 1899.]

(No Model.)

Witfneas ea Znv enfor %@0%W @MW Qt, M QQAHM W/ W UNITED STATES PATENT FFICE.

SASH-LIFTER.

SPECIFICATION forming part of Letters Patent No. 639,321, dated December 19, 1899.

Application filed August 8, 1899.

To all whom it may concern:

Be it known that I, ROBERT WASHBURN, builder, of the town of Harriston, inthe county of Wellington and Province of Ontario, Canada, have invented new and useful Improvements in Roller Sash-Lifters, of which the following is a specification.

The object of my invention is to devise an attachment which may be applied to an ordinary window not provided with the ordinary balance-weights and which will enable the window to be raised and lowered at either the top or bottom, as may be desired, and which consists, essentially, in connecting a chain to each side of the upper sash at the top, passing the chain over pulleys suitably journaled at the top of the window-frame, and extending them downward to a point suitable for connection with two sets of fasteners, one set secured to the frame of the lower sash and the other to the window-frame, substantially as hereinafter more specifically described and then definitely claimed.

Figure l is a perspective view showing my improved sash-lifter applied to a window, the upper sash being partly lowered. Fig. 2 is a similar view showing the upper sash partly lowered and the lower sash partly raised. Fig. 3 is a perspective detail showing the pulleys, with their connecting roller and bearings. Fig. 4 is a perspective view of one of the fasteners.

In the drawings like letters of reference indicate corresponding parts in the different figures.

A is the window-frame, B the upper sash, and G the lower sash. Inside the frame A, at the top, I journal the roller D in bearingpieces E, secured to the frame. Upon this roller E are located the pulleys F, which may be either loose upon or secured to the roller D. Over each pulley passes a chain G, one end of each chain being secured to the upper portion of the upper sash 13, while its lower end is preferably provided with a ring Ct, which may be grasped by the hand. Secured to the lower sash O, at each side, is a fastener H, which is suitably shaped, so that any link of the chain may be engaged therewith, as shown. A similar set of fasteners I are so- Serial No. 726.546, (N0 model.)

cured one to each side of the frame A, preferably somewhat above the fasteners H. When the chains G are engaged with the fasteners H, as shown in Fig. 1, the sashes balance one another, and the raising or lowering of one simultaneously lowers or raises the other. By engaging one of the chains G with a fastener I the upper sash may be held at any desired height and the sash C then. lifted and held at any desired height by engaging the other chain G with the fastener H at each side of the window.

It will be found that by the use of my invention the sashes may be held in any position desired, and that without special labor or trouble.

When a window has not been built with sash-cords and balance-weights, it is impossible afterward to supply the want; but my de vice can be applied to any window at any time and will answer all the purposes of the ordinary method of balancing. It is also much cheaper, and therefore well adapted for use in any new buildings where cheapness is a consideration. 7

What Iclaim as my invention is 1. A sash-lifter comprising a chain secured at one end to theupper sash in combination with a pulley suitably journaled at the upper part of the window-frame, a fastener on the lower frame with which the chain may be engaged and a similar fastener secured to the side of the window-frame substantially as and for the purpose specified.

2. A sash-lifter comprising two chains each secured at one end to the upper sash in com bination with pulleys suitably journaled at the upper part of the window-frame, a fas tener secured to the side of the window-frame with which one of said chains may be engaged, and a fastener on the opposite side of the lower sash with which the other of said chains may be engaged simultaneously, sub

stantially as and for the purpose specified.-

'Toront0, August 3, 1899.

ROBERT WASHBURN In presence of Y J EDW. MAYBEE, A. J. OoLBoURNn. 

